Spatial separation of antiferromagnetism and superconductivity in CeCu2Si2

被引：13

作者：

Faulhaber, E. ^{[1
]}

Stockert, O.

Schmalzl, K.

Jeevan, H. S.

Deppe, M.

Geibel, C.

Steglich, F.

Loewenhaupt, M.

机构：

[1] Tech Univ Dresden, Inst Festkorperphys, D-01062 Dresden, Germany

[2] Max Planck Inst Chem Phys Fester Stoffe, D-01187 Dresden, Germany

[3] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期

关键词：

heavy fermion; superconductivity; neutron scattering; in-situ AC-susceptibility;

D O I：

10.1016/j.jmmm.2006.10.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Depending on the actual stoichiometry, CeCu2Si2 shows either antiferromagnetic order, superconductivity or both phenomena. We investigated a single crystal, where Tc approximate to TN = 0.7K are roughly degenerate. A custom-made in-situ AC-susceptibility setup was utilized for an elastic neutron scattering experiment to directly correlate antiferromagnetic intensity and AC-susceptibility. We found antiferromagnetic satellite peaks together with a diamagnetic signal below TN. The results can be understood by a temperature and magnetic. field dependent spatial separation of antiferromagnetic and superconducting volume fractions. (c) 2006 Published by Elsevier B. V.

引用

页码：295 / 297

页数：3

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